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In this study, researchers observed that trichocytic and epithelial cytokeratins have distinct expression patterns within various human and bovine hair follicle cells, contributing to understanding hair follicle development and growth.

This study found that trichocytic cytokeratins, typically found in hair, are also present in nails, filiform papillae of the tongue, and the epithelial reticulum of the thymus.

This study found that T cytokeratins appear more gradually and with complex coexpression patterns in developing nail structures compared to the more abrupt transition in hair follicles.

This study reports that expressed mouse type Ia and type IIa trichocyte keratins were successfully assembled into intermediate filaments in vitro, while also suggesting that disulfide bond cross linking enhances their stability.

This study found that disulfide bonds in keratin increase its strength and toughness, with some loss of α-helical structure under load, highlighting their role in trichocyte α-keratin's mechanical properties.

This study found that the hHa7 gene in hair follicle trichocytes is the first identified to have its expression directly regulated by androgens, suggesting it as a marker for androgen action on hair follicles.

In this study, hair pain (trichodynia) was reported by a significant portion of patients with hair loss, but it did not correlate with the cause or activity of the condition.

This study reports that trichocyte intermediate filaments from rat vibrissae and human hair follicles may contain a hollow region at their core, suggesting unique structural properties.

This study found that trichodynia is common among patients with telogen effluvium and androgenetic alopecia, and it often coexists with psychological issues like depression and anxiety.

This study found that telogen effluvium and trichodynia are common in patients after COVID-19, and their severity may be influenced by the severity of the COVID-19 infection.

This study observed that psychological factors and serum levels of zinc, folate, and vitamin B12 may contribute to the development of trichodynia.

Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.

This abstract reviews the symptom of trichodynia, a painful scalp sensation linked to hair loss, and highlights its potential connection to inflammation but reports no new research findings.

This paper highlights trichodynia as a distinguishing symptom of telogen effluvium, but it does not present new clinical findings.

This study suggests that varying intersheet interactions may explain the differences between the two polymorphic forms of macrofibril assembly in Merino wool and hair.

Keratin structure changes during keratinization, but the exact model remains uncertain.

This study successfully developed and characterized a monospecific monoclonal antibody, LHTric-1, that specifically localizes to the pre-cortical region of the hair follicle and can aid research on hair and nail formation.

This study in Italy observed telogen effluvium and trichodynia as common hair-related complications following COVID-19 infection, raising questions about underlying hair follicle biology and potential receptor involvement.

This review discusses the evolutionary history of keratins and reports no new results, highlighting key events that contributed to the development of mammalian hair and integument.

This review discusses the diversity of keratins and keratin-associated proteins in wool and hair, noting significant variation in their families, with no new results reported; the authors detail known protein structures without experimental findings.

This study found that trichodynia is associated with both peripheral and central sensitization, potentially linked to hair cycle abnormalities and chronic pain through proinflammatory agents.

This review discusses recent advances in understanding the structural hierarchy of trichocyte keratins, including their heterodimeric structure and distinct conformations impacting hair growth, with no new experimental results reported.

In this study, trichocytes were shown to have potential for alternative differentiation, with mesenchymal cell influences playing a critical role in determining this process.

This study found no significant association between serum levels of vitamin B12, folate, TSH, ferritin, zinc, or anxiety scores and trichodynia in telogen alopecia patients.

The conclusion is that "trichoknesis" should be recognized as a separate condition from trichodynia, characterized by itching instead of pain.

This case report describes a woman with refractory trichodynia who became asymptomatic after receiving botulinum toxin type A injections, suggesting potential efficacy of this treatment for persistent trichodynia.

This study observed that hair and scalp sensations were significantly more common and intense in chemotherapy patients compared to those receiving tamoxifen, with sensations ceasing after 11 weeks.

This review discusses the characteristics, potential triggers, and challenges in diagnosing and treating sensitive scalp, reporting no new clinical results, and noting the need for further investigation.

This article discusses the potential association between stress, poor sleep, and telogen effluvium during the COVID-19 pandemic, highlighting the possible role of substance P, but reports no new clinical results.